Frontiers of quantum physics

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How to Extract Entanglement from a Piece of Solid or a Bunch of Neutrons

(2006)

Authors:

Marcelo O Terra Cunha, Vlatko Vedral

Spatial Entanglement of a Free Bosonic Field

(2006)

Authors:

L Heaney, J Anders, V Vedral

Local extraction of EPR entanglement from classical systems

(2006)

Authors:

D Kaszlikowski, V Vedral

Entanglement in single particle systems

(2006)

Authors:

MO Terra Cunha, JA Dunningham, V Vedral

A scheme for entanglement extraction from a solid

New Journal of Physics 8 (2006)

Authors:

G De Chiara, C Brukner, R Fazio, GM Palma, V Vedral

Abstract:

Some thermodynamical properties of solids, such as heat capacity and magnetic susceptibility, have recently been shown to be linked to the amount of entanglement in a solid. However, this entanglement may appear a mere mathematical artefact of the typical symmetrization procedure of many-body wavefunction in solid state physics. Here we show that this entanglement is physical, demonstrating the principles of its extraction from a typical solid-state system by scattering two particles off the system. Moreover, we show how to simulate this process using present day optical lattice technology. This demonstrates not only that entanglement exists in solids but also that it can be used for quantum information processing or as a test of Bell's inequalities. 漏 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.